Volume (filling prism with cubes, amount of space)

Finding Volume of a Rectangular Prism By Counting Cubes video

Measuring Volume of Rectangular Prism with Cubic Units video

Finding Volume (Math Antics) video

Surface Area of 3D Shapes video

 

Place Value

Khan Academy video: Rewriting mixed numbers as improper (and vice verse, and practice!)

 

 

LOOK at the place value chart. Notice that one decimal place is tenths and two decimal places is hundredths. SO, a fraction /10 is one decimal place and a fraction /100 is two decimal places.

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Khan Academy video: Relationship between fractions, decimals and percentages

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